ctx := r.Context()

	objectAPI, _ := validateAdminReq(ctx, w, r, policy.AddUserToGroupAdminAction)
	if objectAPI == nil {
		return
	}

	data, err := io.ReadAll(r.Body)
	if err != nil {
		writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrInvalidRequest), r.URL)
		return
	}

	var updReq madmin.GroupAddRemove
	err = json.Unmarshal(data, &updReq)
	if err != nil {

	if err != nil {
		t.Fatalf("Failed to getLatestFileInfo - %v", err)
	}

	part1Disk1Origin, err := firstDisk.ReadAll(t.Context(), bucket, pathJoin(object, fi.DataDir, "part.1"))
	if err != nil {
		t.Fatalf("Failed to read a file - %v", err)
	}

	part1Disk2Origin, err := secondDisk.ReadAll(t.Context(), bucket, pathJoin(object, fi.DataDir, "part.1"))
	if err != nil {
		t.Fatalf("Failed to read a file - %v", err)

	// Parse parameters
	switch {
	case *stdin:
		// Parse 'mc support inspect --json' output
		input := struct {
			File string `json:"file"`
			Key  string `json:"key"`
		}{}
		got, err := io.ReadAll(os.Stdin)
		if err != nil {
			fatalErr(err)
		}
		fatalErr(json.Unmarshal(got, &input))
		inputs = []string{input.File}
		*keyHex = input.Key
	case len(flag.Args()) == 1:
		var err error

	// Write all data, syncs the data to disk.
	// Should be used for smaller payloads.
	WriteAll(ctx context.Context, volume string, path string, b []byte) (err error)

	// Read all.
	ReadAll(ctx context.Context, volume string, path string) (buf []byte, err error)
	GetDiskLoc() (poolIdx, setIdx, diskIdx int) // Retrieve location indexes.

		if rec.Code != testCase.expectedRespStatus {
			b, _ := io.ReadAll(rec.Body)
			t.Fatalf("Test %d: Expected the response status to be `%d`, but instead found `%d`: %s", i, testCase.expectedRespStatus, rec.Code, string(b))
		}
		if testCase.expectedRespStatus != http.StatusOK {
			b, err := io.ReadAll(rec.Body)
			if err != nil {
				t.Fatal(err)
			}
			var apiErr APIErrorResponse

	}
	defer xhttp.DrainBody(respBody)

	dec := msgpNewReader(respBody)
	defer readMsgpReaderPoolPut(dec)

	err = rf.DecodeMsg(dec)
	return rf, err
}

// ReadAll - reads all contents of a file.
func (client *storageRESTClient) ReadAll(ctx context.Context, volume string, path string) ([]byte, error) {
	ctx, cancel := context.WithTimeout(ctx, globalDriveConfig.GetMaxTimeout())
	defer cancel()

	if err != nil {
		t.Fatalf("Failed to build service status request %v", err)
	}

	rec := httptest.NewRecorder()
	adminTestBed.router.ServeHTTP(rec, req)

	resp, _ := io.ReadAll(rec.Body)
	if rec.Code != http.StatusOK {
		t.Errorf("Expected to receive %d status code but received %d. Body (%s)",
			http.StatusOK, rec.Code, string(resp))
	}

	result := &serviceResult{}

	f, err := os.Open("testdata/xl.meta-corrupt.gz")
	if err != nil {
		t.Fatal(err)
	}
	defer f.Close()

	gz, err := gzip.NewReader(bufio.NewReader(f))
	if err != nil {
		t.Fatal(err)
	}

	buf, err := io.ReadAll(gz)
	if err != nil {
		t.Fatal(err)
	}

	_, err = readXLMetaNoData(bytes.NewReader(buf), int64(len(buf)))
	if err == nil {
		t.Fatal("expected error but returned success")
	}
}

	if !s.checkID(p.DiskID) {
		return nil, grid.NewRemoteErr(errDiskNotFound)
	}

	volume := p.Volume
	filePath := p.FilePath

	buf, err := s.getStorage().ReadAll(context.Background(), volume, filePath)
	return grid.NewBytesWith(buf), grid.NewRemoteErr(err)
}

// ReadXLHandler - read xl.meta for an object at path.

	}
	return false
}

// Returns SHA256 for calculating canonical-request.
func getContentSha256Cksum(r *http.Request, stype serviceType) string {
	if stype == serviceSTS {
		payload, err := io.ReadAll(io.LimitReader(r.Body, stsRequestBodyLimit))
		if err != nil {
			logger.CriticalIf(GlobalContext, err)
		}
		sum256 := sha256.Sum256(payload)
		r.Body = io.NopCloser(bytes.NewReader(payload))